Emergency repair for pipes



- 1,638,26 Y. Allg' 91-92-71 G. H. MULLINACK, v 9

EMERGENCY REPAIR FOR PIPES Filed April 28. 1926 Fatented Aug. 9, 1927.

narran stares Aralar. `ortica GEORGE H. MUIJLINACK,V 0F WEST FRANKFURT,ILLINOIS., ASSIGNOR OF TWENTY- THREE ONE-HUNDREDTHS TO ARTHUR E. SIMSOAND TWENTY-THREE yONE- HUNDREDTHS T0 JAMES ISAACS, OF WEST FRANKFORT,ILLTNOIS.

EMERGENCY REPAIR FOR FIPES.

My invention relates to improvements in emergency repair for pipes. andhas tor its primary object a device by means oli which a sudden leak ina pipe of any kind can be quickly repaired.

A further object ot my invention is to construct an emergency repair forpipes which can be used either on hose or similar flexible pipes or canbe used on metal pipes so that the same can be repaired and theirutility maintained withoutany appreciable lossof time.

My device is especially useful for railroads` fire departments' and thelike as the repair can be left on indefinitely. lt can also be usedA forpipes of all kinds which are used in conveying fluids. such as water.yoil and the like, air or steam.

Mv device is especially applicable to railroad work as it frequentlyhappens that either the air hose or the air pipe under-- neath the carwill develop a leak which will result in the setting" of the air brakes.When this occurs. it is necessarv to eut out or switch the ear in whichthis leak has occurred so that the train may proceed. When this happensin switch yards. it frequently takes a very long time to cut out the carwhile. if it occurs on the main line.;this is practically impossiblebecause no switch and if the train is to continue all. air brakes mustbe cut out ot' service. but with my device the leaky pipe can bevquickly repaired and the train proceed on its way without anyappreciable loss of time;

My device is also useful for repairing water pipes, steam pipes, and intact any kind of pipe or tubular conveyorL which may spring a leak.

In thel drawings:

Fig. 1 is a side view oli my device as applied to a pipe:

Fig. 2 is a cross, section taken on the line 2 2 of Fig. 3 with the'clamping means released;

Fig. 3 is a top plan view of the device; and

Figll is an end viewot the gasket employed when using my device on metalpipes.

In the construction ofV my device I employ members 5 and 6 which areeach provided with a recess 7. this recess being ot suflicient depth toreceive the flexible metallic strip 8. This strip is preferably formedApplication filed April 28, 1926. Serial No. 105,088.

of steel although other flexible material or metal may bey used. itbeing essential however that the strip 8 be of some material which issubstantially non-elastic so that it will not stretch. The strip 8 issecured in the recesses of the `members 5 and 6 by means of rivets 9which are countersunk in the strip 8 so thatvno projection will-occur onthe inside of the device. The member 5 is provided with Aa hook 1() overwhich the link 11 is adapted to pass. The purpose of this link will beexplained indetaililater.

The member 5 is also provided at one end with a adapted to receive thevV rshaped tongue 13 formed on one edge of the member 6. The member 5 isalso provided with tongues 14 which have their ends 15 upturned so thatthey will readily slip over the member 6 when clamping the same5 whichtongues when in engagement'prevent side movement V shaped indentation12-which is of the members 5 and 6. The member 6 is provided with atongue 17. the end 18 of which is also upturned so as to slide over themember v5. The tongues 14:k and 17 prevent any independent outward orbulgingmovement ot' the meetingedges of the members 5 and 6 and also actas guides so that the meeting edges can be drawn closely-tolgether.

lFormed on the member 6 is a lug 19fto which is pivotally attached ahandle 20. Mounted in the handle 20 and adjacent the pivotal attachmentis the link 11. The link 11 is so mounted in the handle 2O that when thehandle is pulled in the position illustrated in Figs. 1 and 2. thehandle will have a cam action and pull the link toward the lug 19andwhen this link has been placed over -the hook will draw the members 5and 6 may be made of various substances as torv instance, when repairinga pipe through which cold water or air passes, the gasket may be made ofrubber, `When repairing an oil pipe the gasket is made of some suolimaterial as will not be affected by oil, and when used for the passageot lsteam or other hot fluid or gas, the gasket may be made ot' asbestosor similar' heat-resisting material. I desire it to be understood thatmy device may be made ttor any size or diameter' ot pipe and that theflexible member S may be made of any material which is flexible andstill has very little elasticity or stretching quality.

In applying my device after the leak has been located, the link l1 isreleased from the hook l0 and the repair device opened out so that itcan be slipped over the pipe. The members 5 and 6 are then broughttogether by hand and the link 1l placed over the hoo-k l0. The handle 2Ois then pressed down which securely binds the repair over the leakingportion.

0f course in rubber hose, or for lire department use, it is notnecessary to use the gasket 22 but when the repair is used on metallicpipe of any kind, the gasket 2Q is first placed in position. This gasketis of Vsuch size that when placed around the pipe to be repaired, itsedges 23 will just meet so that an equal pressure can be exerted allaround.

My device is especially useful in that a repair can be made in a Veryshort time. There are no nuts or bolts to tighten down but merely themovement of a lever is necessary to clamp the device securely on thepipe to be repaired.

IVhile I have shown my device with merely one hook and lever, I do notdesire to limit myself thereto as there may be iustances in which it isnecessary to make a relatively long temporary repair and in thisinstance a plurality ot levers, links and hooks will have to be employedto properly draw up the repair. This however will involve only the skilloit an ordinary mechanic and therefore this structure has not been shownor described in detail.

I'Iaving Yfully described my invention, what I claim is:

1. A device of the class described comprising a pair of members havingrecessed edges, a llexible non-elastic strip secured in the recessededges of said members for uniting the same, and means carried by onemember and engaging with the opposing member for drawing said memberstogether.

2. An emergency repaircomprising a pair of members, a tlexiblenon-elastic strip for uniting said members, means carried by one et saidmembers and engaging with the other member for securing the saine to apipe, means project-ing from one memberl and over the other member forpreventing the outward n'iovement of one member in respect to the othermember, the meeting edges of said members arranged to interlock so as toprevent side movement of said members relative to each other.

l. A device ot the class described c0inprising a pair ot members having`opposing edges, a flexible strip secured to said members adjacent theopposite edges, means carried by one member and engaging with theopposing member for drawing the same together and securing it around apipe, and means carried by each member and overlapping thc other memberfor prevent-ing the outward movement of one member in respect to theopposite member.

In testimony whereof I have aflixed my signature.

GEORGE H. MULLINACK'.

